JPH09101054A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the resistance against a flow of air and increase the heat- exchange capacity in improving the performance and also facilitate the cleaning by providing an inlet for air in the front of a casing. SOLUTION: This air conditioner has in the front part of the bottom of a decorative cover 3 an air outlet 5, which is somewhat inclined and has air- directing slats 6a, 6b. The apparatus has in the lower part of the front side of a front panel 4 a first air inlet 7 having a screening board 9 which covers or exposes a cover 8. The apparatus furthermore has a second air inlet 12 and a third air inlet 13 in the top side of the decorative cover 3 and in that of a back cabinet 2, respectively. This constitution, when the air conditioner is not at work, makes the air conditioner harmonize with the interior by covering the air outlet 5 and the first air inlet 7 under the air-directing slats 6a, 6b and the screening board 9, respectively. When the apparatus is at work, the air-directing slats 6a, 6b are opened as required for the cooling or heating; then the screening board 9 is opened and the room air is sucked in through the first air inlet 7, the second air inlet 12 and third air inlet 13, turned to cooler air or warmer air by a heat exchanger inside, and blown out through the air outlet 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner provided with an indoor air inlet on the front surface of a housing, and more particularly,
The present invention relates to an air conditioner that reduces ventilation resistance to improve performance, is easy to clean, and is easy to maintain.

[0002]

2. Description of the Related Art A conventional air conditioner, for example, in a wall-mounted air conditioner, has a suction grill formed on the front surface of a casing having a ventilation passage having a filter, a heat exchanger and a blower fan inside. In general, a structure is provided in which the indoor air sucked from the suction port and the suction port on the upper surface is blown out from the air outlet provided on the bottom surface.

In Japanese Patent Laid-Open No. 4-145, a suction grill having a block plate and a grill hole plate formed in a circular arc shape having a series of widths is rotatably attached to the back of the suction port provided on the front panel of the air conditioner body. There is disclosed an air conditioner which is installed opposite to the air conditioner and closes the suction port with the closing plate when the device is stopped, and which rotates the grill hole plate to the suction port when the device is in operation to secure an air passage.

Further, in Japanese Patent Laid-Open No. 1-95249, the front surface of the front cover of the suction port is divided by a plurality of louvers, and the louver of the suction port is made rotatable so that the discharge angle of the discharge wind direction plate and the suction of the louver. An air conditioner with linked corners is disclosed.

[0005]

The first conventional example is as follows.
By exposing the suction grill hole only during operation, the appearance at the time of stop can be improved, but during operation, the inside can be seen from the suction grill. In order to rotate the arc-shaped suction grill in which the suction grill hole plate and the closing plate are integrated, a space for rotating in the arc shape is required in the vertical direction and the depth direction, and the rotation function becomes large and the entire device is large. Turn into.

Further, there is a problem that a certain amount of dusty fibrous dust, insects, etc. infiltrate from the suction grille, and the filter to which these are attached is quickly clogged and partially clogged. . Moreover, since it has a suction grill, dust easily collects on the grill, especially when not in use.

[0007] When cleaning the suction grill with dust, it is difficult to clean it because dust is present in the gaps between the grills. Therefore, even if it is attempted to remove and clean, the removal is not easy. In the second conventional example, since a plurality of louvers are rotated in conjunction with each other, the number of parts is increased, the structure is complicated, and the cleanability is also a problem. In addition, the louver projects to the front during rotation, which causes a problem in design. Not only that, there is a risk that an object will hit or get caught in the protruding louver, which causes a failure.

An object of the present invention is to provide an air conditioner which can reduce ventilation resistance to enhance heat exchange performance, improve performance, and can be easily cleaned.

[0009]

In order to achieve the above object, the first invention is a housing having an air inlet and an air outlet, an air filter inside the housing, and a heat exchanger. In an air conditioner having a blower indoor fan and a ventilation path in which these air filters, heat exchangers, and blower indoor fans are sequentially arranged in the air flow direction, the air suction port has a front surface of a housing. In addition, the air conditioner includes a shield plate that moves to open or shield the suction port, a drive unit that drives the shield plate, and a control unit that controls the drive unit.

Further, in the second invention, the control means is an air conditioner capable of being driven when the air conditioner is stopped, as the drive means for driving the shield plate.

According to a third aspect of the present invention, the air suction port is provided on the front surface of the housing, the shield plate moves so as to open or shield the suction port, and drive means for driving the shield plate. The control means for controlling the drive means and a remote controller for sending a control signal to the control means are provided, and the control means is control transmitted by operating a specific operation button of the remote controller when the air conditioner is stopped. An air conditioner that receives a signal and controls the driving means to drive the shielding plate when the air conditioner is stopped is provided.

A fourth aspect of the present invention is a housing having an air inlet and an air outlet, an air filter inside the housing, a heat exchanger, a blower indoor fan, and heat exchange with these air filters. In an air conditioner having a ventilator and a ventilation fan in which ventilation fans are sequentially arranged in the air flow direction, the air suction port is provided on the front surface of the housing, and the air suction port is provided between the suction port and the filter. The air conditioner is provided with a ventilation part, and a cover for covering the front surface of the filter is arranged. The ventilation part is an air conditioner in which a large number of openings larger than the size of the meshes or holes of the filter are densely provided.

[0013]

The control means of the first invention controls the drive means for driving the shield plate to control the operation so as to open or shield the suction port. .

The control means of the second invention controls the drive means for driving the shield plate to open and close the shield plate when the air conditioner is stopped.

The control means of the third invention receives a control signal transmitted by operating a specific operation button of the remote controller when the air conditioner is stopped, and controls the drive means when the air conditioner is stopped. Drive the shield.

The ventilation part of the cover for covering the front surface of the filter of the fourth invention is provided with a large number of openings which are larger than the size of the meshes or holes of the filter, so that large dust or fibrous matter is formed. Remove dust from the filter to prevent the filter from clogging by capturing only fine dust.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. Note that the same or similar parts, arrows, and the like are denoted by the same reference numerals, and redundant description will be omitted.

1 to 20 show an embodiment of an air conditioner according to the present invention.

First, referring to FIG. 1, a schematic structure of the appearance of the air conditioner according to this embodiment will be described. In the figure, reference numeral 1 generally indicates an indoor unit of an air conditioner, which is connected to an outdoor unit (not shown) via a refrigerant pipe (not shown), a power supply connection line, a signal connection line, etc. and installed on a wall surface in the room. Therefore, the main purpose is to cool and heat the room.
The appearance of the indoor unit 1 includes a resin-molded back cabinet 2, a resin-molded decorative cover 3 provided on the front surface of the back cabinet 2, and a resin-molded front panel 4 provided on the front surface of the decorative cover-3. It consists of

Reference numeral 5 denotes a blower outlet which is arranged inclining forward of the bottom surface of the decorative cover 3, and includes two resin-molded wind direction plates 6a,
6b. Reference numeral 7 denotes a first suction port arranged on the lower front side of the front panel 4, and the first suction port 7 is provided with a resin-molded shielding plate 9 that moves in the vertical direction to conceal / expose the cover 8. It is provided. The cover 8 is a net formed by punching a plurality of small holes, and is attached to the front surface of a filter 11 that covers the heat exchanger 10 described in FIG.

A second suction port 12 and a third suction port 13 are formed on the upper surfaces of the decorative cover 3 and the back cabinet 2. Further, at the center of the lower part of the front panel 4, there are arranged a display section 14 for displaying the driving condition and a light receiving section 15 for receiving an infrared operation signal from a separate remote controller.

According to the indoor unit 1 according to this embodiment,
The outlet 5 and the first inlet 7 that are visible when installed when stopped
Are hidden by the wind direction plates 6a and 6b and the shielding plate 9 to harmonize with the interior of the room, and the wind direction plates 6a and 6b are opened for air conditioning during operation, and the shielding plate 9 is opened to open the first suction port 7 and Room air can be sucked in through the second and third suction ports 12 and 13 to be cooled air or warm air in the heat exchanger 10 inside and blown out from the air outlet 5.

Next, referring to FIG. 2, the component structure of the indoor unit 1 will be described. In the figure, the back cabinet 2
Inside the fan is a once-through fan 16, a heat exchanger 10 and a drain tray 1.
Basic internal structures such as 7 are mounted. The once-through fan 16 has a right rotation shaft supported by a fan motor 18 and a left rotation shaft supported by a bearing 19, and is attached below the back cabinet 2 by a fan motor support member 20 and a bearing support member 21.

The heat exchanger 10 includes two heat exchangers 10a and 10b having different sizes, and the two heat exchangers 10a and 10b.
And a solenoid valve 10d, which is connected to the back cabinet 2 so as to cover the front and upper portions of the flow-through fan 16. The drain tray 17 is disposed below the heat exchanger 10a, receives the dew of the heat exchanger 10a, and discharges it outside the room through the drain nozzle 22.

Further, the drain tray 17 forms a blowout air passage 53 (shown in FIG. 9) together with the back cabinet 2,
On the lower surface of the drain plate 17, a plurality of left and right wind direction plates 2
3 and vertical wind direction plates 6a and 6b are attached.
Here, the stepping motor 24 is attached to one end of each of the wind direction plates 6a and 6b, and the wind direction angle can be automatically changed. Reference numeral 25 denotes an electrical component box which is attached to the front portion of the fan motor 18 and which incorporates electrical components including various electric components (not shown) such as a microcomputer and a power source.

An upper cover 26 and a lower cover 27 are detachably provided on the upper right and lower right of the back cabinet 2. When the heat exchanger 10 is attached to the back cabinet 2, the upper cover 26 is removed during assembly so that the portion of the upper cover 26 does not hinder the assembly work.

The lower cover 27 forms a piping port for piping / wiring the refrigerant pipe 28 attached to the heat exchanger 10, the wiring from the drain pipe 22 and the electrical equipment box 25 to the outside of the indoor unit 1. By selecting and cutting out a plurality of notch portions (not shown) of the lower cover 27, horizontal piping / vertical piping is possible. In addition, at the time of piping, piping work and aesthetics are improved by the pipe pressing fitting 29.

Now, the basic internal structure such as the flow-through fan 16 attached to the inside of the back cabinet 2 is included in the indoor unit 1 by attaching the decorative cover 3. A filter 11 to which the cover 8 and the air cleaning filter 30 are attached is detachably attached to the decorative cover 3. Further, the shield plate 9 is attached to the decorative cover 3 via the shutter mechanism portion 31, and the display unit 14 and the light receiving unit 15 are further attached to the decorative cover 3. Then, the front panel 4 is attached to the front surface of the decorative cover 3. still,
Reference numeral 32 is a mounting bracket for mounting the indoor unit 1 on the wall surface.

Next, a specific structure will be described in detail with reference to FIGS. First, referring to FIGS. 3 to 7,
The external structure of the indoor unit 1 will be described in detail. In the figure, the indoor unit 1 has a width W of 798 mm and a height H of 2
It has a laterally long external dimension of 70 mm and a depth D of 183 mm.

In the present embodiment, the height H is set corresponding to the fact that the small wall on the upper part of the window is made small in order to secure a large window in the recent residential environment, and the width W is set to the half width 91.
The depth D is set so that it can be installed at 0 mm (minimum between columns is 800 mm), and the depth D is set in consideration of the restrictions of the width W and height H and the internal structure. The indoor unit 1 having this size system can be installed in the installation environment, which has been in high demand in recent years, and thus the variety of installation can be improved.

In the side view shown in FIG. 3, in the indoor unit 1, the back cabinet 2 is formed in a box shape, and the upper and lower surfaces of the decorative cover 3 and the front panel 4 are substantially vertically symmetrical when viewed from the side, and are forwardly arranged. The curved surfaces 33, 34 are formed by large curved surfaces 33, 34 that are narrowed toward
By forming the front surface of the front panel 4 formed between the inner surfaces of the indoor unit 1 with the large curved surface 35 that is inclined rearward, the indoor unit 1 can be made to look like a compact form that fits on the wall surface when installed on the wall surface.

Further, by forming the upper surface with the curved surface 33, the second suction port can be made inconspicuous in the installed state and the room air can be efficiently sucked from the upper front side. On the other hand, since the lower surface is formed by the curved surface 34 that gently inclines from the lower end of the front surface, the appearance is visually easy to adapt to the installation environment (easily fused with the room, especially the wall surface)
It is possible to give an inclination to the air outlet 5 by utilizing the “face”.

Further, in the indoor unit 1, the front panel 4 is formed into a flat shape having a uniform thickness, and the groove 36 is formed in a division portion with the decorative cover 3, so that the front panel 4 and the decorative cover 3 are separated from each other. Good mating,
Accent lines of large curved surfaces 33 and 34 with continuous roundness are provided to reduce the depth and further improve the compactness. In the drawing, 37 is formed on both lower sides of the decorative cover 3 adjacent to the groove 36, and is a hand-holding recess for putting a fingertip on the front panel 4 when the front panel 4 is removed.

In this embodiment, the curved surface 3 having a large upper surface is used.
3 is formed of R300 mm (decorative cover 3) and R100 mm (front panel 4), the large curved surface 34 of the lower surface is formed of R200 mm, and the large curved surface 35 of the front panel 4 is formed of R720 mm. Further, the depth of the back cabinet 2 is 61 mm, the depth of the front panel 4 is 23 mm, and the intersection P of the large curved surface 33 and the large curved surface 35.
1, the height is 30 mm, the depth is 170 mm, the intersection point P2 of the large curved surface 34 and the large curved surface 35 is 40 mm in height, the depth is 179 mm, and the large curved surface 35 is 200 m in height.
It is set to m.

In the front view shown in FIG. 4, in the indoor unit 1, the four corners of the front are formed with large rounded corners 38a, and the four corners of the groove 36 and the large curved surface 35 are rounded with the similar rounded corners 38b. 38c, and both side surfaces that are continuous with the radius 38 are formed into a large arc surface having a convex center that is slightly narrowed inward to form a compact, rounded appearance shape with improved internal real phase efficiency. .

In this embodiment, the large radius 38a is set to R24 mm. A first suction port 7 is formed below the center of the large curved surface 35 formed on the front surface of the front panel 4, leaving the large curved surface 35 around. In this embodiment, the size of the first suction port 7 is 7
38 mm, the height is 85 mm, and the height from the lower surface of the indoor unit 1 to the center of the first opening in the height direction is set to 112 mm.

Since the large curved surface 35 having no suction port is provided around the first suction port 7, the strength of the front panel 4 can be increased. The circumference of the first suction port 7 is not limited to the large curved surface 35 but may be a flat surface,
In the case of a flat surface, unevenness is likely to occur during molding, and it is difficult to obtain processing accuracy.

Since there is no suction port around the first suction port 7, the front end of the decorative cover 3 can be formed up to the portion located behind the large curved surface 35 of the front panel 4, and Since the front end has the step portion 47, the strength of the decorative cover 3 can be increased. As a result, the hometown of the decorative cover 3 can be increased without increasing the thickness of the decorative cover 3, so that the area of the suction port on the upper surface of the decorative cover 3 and the area of the air outlet 5 on the lower surface of the decorative cover 3 can be increased. The necessary strength of the decorative cover 3 was secured.

Further, inclined surfaces 39 are formed on the upper and lower portions of the first suction port 7, and the step between the shielding plate 9 and the large curved surface 35 is made small to make it continuous and to facilitate the suction of indoor air. There is. Large curved surface 35 below the suction port 7
The display unit 14 arranged in the center of the structure has a groove 40 in which three horizontally long openings formed in the front panel 4 are arranged side by side, and the LED lamp of the display unit 14 is exposed from the horizontally long opening. I am trying.

The LED lamp is composed of an operation lamp arranged at the center, a dehumidification operation lamp and a timer operation lamp arranged on both sides. Further, the light receiving unit 15 arranged in the center of the large curved surface 34 of the front panel 4 below the display unit 14 has a structure in which the light receiving unit 15 is exposed from a rectangular opening 41 formed in the front panel 4.

Further, the second suction port 12 and the third suction port 14 formed on the large curved surface 33 and the air outlet 5 formed on the large curved surface 34 are formed so that both ends are formed to the vicinity of the large radius 38. There is. In this way, the indoor unit 1 is arranged and formed symmetrically with respect to the layout and shape of each part of the external appearance, and by doing so, it is possible to eliminate the left-right directionality in the external appearance, and thus it is suitable for the indoor installation environment. Can be made easier.

In the plan view shown in FIG. 5, the decorative cover 3
The second suction port 12 formed on the upper surface of the back cabinet 2 and the third suction port 13 formed on the upper surface of the back cabinet 2 are provided with a plurality of horizontal bars 42 and reinforcing vertical bars 43 sparsely. By making it a grill shape and leaving a wide housing surface around,
It has a large aperture ratio and is inconspicuous.
In particular, since the second suction port 12 is made inconspicuous by the curved surface 33, the design is not deteriorated even if the opening ratio is large.

In this embodiment, the opening ratio of the first and second suction ports is set to 81.3%. In addition, in the present embodiment, the area of the suction port on the upper surface of the decorative cover 3 can be increased without increasing the plate thickness dimension of the decorative cover 3, and between the second suction port 12 and the third suction port 13. By leaving a wide casing surface in the back, the upper surfaces of the back cabinet 2 and the decorative cover 3 are strengthened, and distortion due to molding is reduced, so that the back cabinet 2 and the decorative cover 3 are fitted well and the designability is improved. Can be improved.

In this embodiment, the width of the second suction port 12 and the third suction port 13 is 732 mm, and the second suction port 12 is
Depth of 64 mm, depth of the third suction port 13 is 29 mm
Is set to

Also, the second suction port 12 and the third suction port 1
3 has a grid composed of horizontal bars 42 and vertical bars 43. Five horizontal rails 42 are provided at the second suction port 12 and two at the third suction port 13 at approximately equal intervals. The vertical rail 43 is provided at a position deeper than the horizontal rail 42 from the outer surface, and seven vertical rails 43 are formed so as to divide the openings 12a and 13a at equal left and right intervals.

Further, in this embodiment, as shown in FIGS. 2 and 9, an electric component having a fan motor 18 on the right side of the indoor unit 1 and a control board for controlling the fan motor 18 and other electric components. Since the internal structure such as the box 25 is provided, the second suction port 12 and the third suction port 1
A partition plate 44 for concealing the internal structure is formed on the right side of 3.

Therefore, the second suction port 12 of the present embodiment.
The substantially indoor air suction ports of the third suction port 13 and the third suction port 13 are the openings 12a, 13a located on the left side of the second suction port 12 and the third suction port 13 shown in FIG. Opening 12
The area of a and 13a is the width dimension 665m shown in FIG.
It is the area obtained by subtracting the projected areas of the horizontal rails 42 and the vertical rails 43 from the area obtained from m and the depth dimensions 64 mm and 29 mm.

The width dimension of 665 mm and the depth dimension of 64
The area calculated from mm and 29 mm is the second suction port 1
2 is 425.6 mm ² , and the third suction port 13 is 192.
Is 85 mm ^2, the total area becomes 618.45mm ^2.

The area of the horizontal rails 42 and the vertical rails 43 is 5 mm for the horizontal rails and 7 mm for the vertical rails 43 in order to secure sufficient strength in the embodiment.
It was determined from this dimension, the width dimension and the number. The second suction port has an area of the horizontal rail 42 of 166.25 mm ² and an area of the vertical rail 43 of 25.6 mm ² . The third inlet is
The horizontal rail 42 has an area of 66.5 mm ² , and the vertical rail 43 has an area of 10.15 mm ² . The total area is 2
It becomes 68.5 mm ² .

Therefore, the areas of the openings 12a and 13a, that is, the substantial suction areas of the second suction port 12 and the third suction port 13 are 618.45 mm ² to 268.
The 349.95mm ² minus the 5mm ^2.

In the embodiment shown in FIG. 5, since the front panel 4 has the large curved surface 35 (large surface) around the first suction port 7 and the stepped portion 47 at the front end of the decorative cover 3, the casing is formed. Although the strength of the body can be greatly improved as compared with the prior art, the example of the embodiment shown in FIG. 6 is sufficient if the same level of housing strength as the prior art is secured. Moreover, the area of the opening can be made larger than that of the embodiment of FIG. That is, the area of the opening in the embodiment shown in FIG. 6 is 3 mm for both the horizontal rails 42a and the vertical rails 43a, and was calculated from the plate thickness dimension, the horizontal width dimension and the number.

The width dimension is 644 mm and the depth dimension is 73.
The area calculated from mm and 19 mm is the second suction port 1
2 is 470.12 mm ² and the third suction port 13 is 12
2.36 mm ² , giving a total area of 592.48 mm ² .

The area of the horizontal rail 42a of the second suction port is 10
With 6.25 mm ² , the vertical bar 43a has an area of 13.14 m.
m ² , the central reinforcing bar 42 b has a width of 28 mm and an area of 2
0.44 mm ² , the width of the left end reinforcing portion is 8 mm, and the area is 5.
It is 84 mm ² . The third suction port has a horizontal bar 42a with an area of 14.75 mm ² and a vertical bar 43a with an area of 3.42 m.
m ^2, the area at 28mm the width of the central portion reinforcing bar 42b 5.
32mm ² , width of left reinforcement is 8mm and area is 1.52
mm ² . The total area of these is 170.64
It becomes mm ² .

Therefore, the openings 12a, 1 shown in FIG.
Area of 3a, that is, second suction port 12 and third suction port 1
Substantial suction area 3 becomes 421.84Mm ² minus the 170.64Mm ² from the 592.48mm ^2.

In the bottom view shown in FIG. 7, the decorative cover 3
The blow-out portion 5 formed on the lower surface of is disposed close to the divided portion with the front panel 4. Two wind direction plates 6a, 6b
Has a strip-like shape having a curved surface substantially the same as the large curved surface 34, and in the closed state, substantially conceals the opening of the blow-out portion 5,
A continuous large curved surface 34 is formed on the bottom surface of the indoor unit 1. In this embodiment, the width of the blowout portion 5 is set to 698 mm and the depth is 78 mm.

As described above, the exterior of the indoor unit 1 has a round shape in which the front and bottom sides are narrowed toward the front through the curved surfaces having large top and bottom surfaces and small both side surfaces, and are rounded. It has a basic, vertically and horizontally symmetrically compact compact form, and further has a blow-out portion 5, first, second, and third suction portions 7, 12, 13, a display portion 14, and a light-receiving portion 15 arranged in the front in the center. Are arranged symmetrically with respect to.

The display section 14 and the light receiving section 15 are provided with the makeup cover 3
Is provided on the inner wall surface of the stepped portion 47 of the display unit 14, the display unit 14 is mounted at the center of the vertical surface in consideration of the wide visibility from a distance and from the left and right, and the light receiving unit 15 is mounted from the distance and from the left and right and the wall surface. It is attached to the center of the inclined surface so that light can be received from the remote control. In addition, 80 is a piping space for laterally piping the refrigerant piping 28 formed in the lower back surface by utilizing the rear ventilation surface 53b.

In addition, in the closed state of the blow-out portion 5 and the first suction portion 7, the opening can be covered with a "curved surface" continuous with the surface of the housing, and the appearance is familiar and integrated with the housing. can do. As described above, the indoor unit 1 has the above-mentioned appearance, so that the indoor unit 1 has a compact form in which the indoor unit 1 easily fits into the wall surface and is harmonious with the interior when installed on the wall surface.

Next, the internal mechanism of the indoor unit 1 and the shutter mechanism 31 of the shielding plate 9 will be described with reference to FIGS.

In FIG. 9, the decorative cover 3 has mounting ribs 45 formed on both sides of the upper part, and the mounting ribs 45 are hooked on the third suction part 13 and provided on both sides of the lower part of the decorative cover 3 shown in FIG. It is attached to the back cabinet 2 via a screw in the attachment recess 46. Further, a step portion 47 for reinforcement is formed around the front surface of the decorative cover 3, and the step portion 4 is provided.
A front panel 4 is attached so as to cover 7 from the front.

Mounting ribs 48 are formed on both the inner upper side and the center of the front panel 4, and the mounting ribs 48 are formed on the step portion 4.
10 and 11 by hooking on the mounting hole 49 formed in FIG.
The front panel 4 is made up by fitting the mounting ribs 50 formed on both the inner lower sides and the center of the front panel 4 shown in FIG. 9 into the mounting holes 51 formed in the step portion 47 shown in FIGS. 10, 11, and 8. It is attached to the cover 3. Since the mounting ribs 50 are provided in the vicinity of the hand-holding recesses 37 formed on both side surfaces, the front end of the front panel 4 can be hooked and pulled by using the hand-holding recesses 37 to easily remove it from the mounting holes 51. You can

A drain plate 2a for receiving the dew of the heat exchanger 10b is formed on the upper inner wall of the back cabinet 2. The water droplets collected in the drain dish 2a are collected in the drain dish 17 above the blowout part 5 through a passage (not shown). Further, the cross-flow fan 16 side of the drain tray 2a is formed in an arc-shaped cross section together with the lower inner wall 52 of the back cabinet 2 and the decorative cover 3 forming the blow-out portion 5, and is arranged at a position slightly rearward of the center of the indoor unit 1. The rear ventilation surface 53b is formed so as to surround the once-through fan 16.

A drain tray 17 for receiving the dew of the heat exchanger 10a.
The lower surface portion of the blower portion constitutes a front ventilation surface 53a of the blowout portion 5, and the front ventilation surface 53a and the rear ventilation surface 53b form the blowout ventilation path 5
Constituting No. 3. Further, the horizontal wind direction plate 23 is rotatably supported by the rear of the lower surface of the drain tray 17 and the lower end of the lower inner wall 52 of the back cabinet 2.

The plurality of wind direction plates 23 are divided into a plurality of groups, and each group is connected by a connecting rod 54,
The wind direction angle can be changed in association with each group. The wind direction plates 6a and 6b are attached to the support plates 83a and 83b formed on both sides of the lower surface of the drain tray 17 via unillustrated rotary hinge portions. The support plate 83a to which the wind direction plate 6a is attached is the support plate 83 to which the wind direction plate 6b is attached.
It is formed to be shorter than b so that the wind direction plates 6a and 6b can continuously and integrally be seen on the large curved surface 34 in the closed state.

Further, the wind direction plates 6a and 6b have a tapered shape at the rear part of the wind direction plate 6a and the front part of the wind direction plate 6b so that the wind direction plate 6a and the wind direction plate 6b can be partially overlapped and housed in the closed state. Therefore, in the closed state, the blow-out portion 5 can be concealed compactly by the curved surface conforming to the large curved surface 34, and in the opened state, the width (width) that can sufficiently control the wind direction can be obtained.

The heat exchanger 10a is formed by bending the through-flow fan 16 through the plurality of notches 55 so that the lower end portion is inclined rearward and the upper portion is largely inclined rearward. Further, the heat exchanger 10b is disposed with its upper part inclined forward. The heat exchanger 1 whose lower end is located at the drain tray 17 at a connection point Q substantially above the flow-through fan 16 is provided.
The heat exchanger 10 is configured such that the upper end of 0a and the upper end of the heat exchanger 10b located at the drain tray 2a are connected at the lower end.

The connecting point Q substantially coincides with the plane portion between the second suction portion 12 and the third suction portion 13, and further, the space 56 is formed between the second suction portion 12 and the heat exchanger 10a. A space 57 is formed between the third suction section 13 and the heat exchanger 10b. For this reason, the connection point Q having poor ventilation efficiency is located below the flat surface portion between the second suction portion 12 and the third suction portion 13, and the indoor air sucked from the second suction portion 12 has the space 5
6 to the heat exchanger 10a uniformly, and the room air sucked from the third suction section 13 can be uniformly supplied to the heat exchanger 10b in the space 57.
The efficiency of 0 can be improved.

The first suction portion 7 arranged in front of the lower portion of the heat exchanger 10a is inside the upper portion of the front panel 4 behind the opening 58 formed in the front panel 4 via the shutter mechanism 31. A shield plate 9 that can be stored in the cover is disposed, a cover 8 is disposed inside and behind the shield plate 9, a filter 11 is disposed inside and behind the shield plate 9, and a heat exchanger 10a is disposed inside and rearward of the filter 11. To be done.
Therefore, by moving the shielding plate 9 upward and storing it in the rear inside the upper part of the front panel 4, the first suction portion 7 is opened, and room air can be sucked in through the first suction portion 7. it can.

Next, the detailed structure of the shutter mechanism 31 of the shielding plate 9 will be described with reference to FIGS. 9 to 13. FIG.
In the shutter mechanism 31, the drive mechanism portion 59 is disposed in the front upper portion on the right side of the indoor unit 1, the connecting mechanism portion 60 is disposed in the front portion on the upper left side of the indoor unit 1, and the drive mechanism portion 59. Connecting rod 6 that interlocks the connecting mechanism 60
1 and includes the drive mechanism section 59 and the connection mechanism section 60.
Both ends of the shielding plate 9 are attached to.

The shutter mechanism 31, as shown in FIG. 9, has mounting ribs 6 formed on both inner wall surfaces of the decorative cover 3.
A connecting rod 61 is pivotally supported between the two, and the drive mechanism portion 59 and the connecting mechanism portion 60 are attached to the attaching ribs 62 by being connected to the connecting rod 61. 10 and 13, the drive mechanism unit 59 includes a rack 63 to which the shield plate 9 is attached,
Stepping motor 64 and the stepping motor 64
Mechanism case 65a for transmitting the driving force of the rack to the rack 63
It is composed of

The rack 63 is a rod having an H-shaped cross section with sliding grooves 66 on both sides, and a mounting portion 67 for the shield plate 9 on the front surface and teeth 68 on the back surface. There is. The stepping motor 64 has a drive mechanism case 65.
A terminal 69, which is attached to a by a screw and supplies a control signal and power from a control means such as a microcomputer in the electrical component box 25, is detachably connected.

The drive mechanism case 65a has a first gear 70 directly connected to the rotation shaft of the stepping motor 64 in the case.
A second gear 71 that meshes with the first gear 70 and directly connects with the connecting rod 61, and a third gear 71 that meshes with the teeth 68 of the rack 63.
The gear 72 and the belt 73 that transmits the torque of the second gear 71 to the third gear 72 are configured. 74 is a sliding groove 6
6 is a rack support portion that supports 6 from both sides to ensure good meshing between the third gear 72 and the teeth 68 and guides the rack 63 in the vertical direction.

Reference numeral 75 denotes a guide rail formed on the decorative cover 3 on the moving track Z of the rack 63, which supports the rack 63 together with the rack supporting portion 74 and guides the moving track of the rack 63. In this embodiment, the rack 63
Although the guide rail 75 is provided for stable movement of the rack, the same effect can be obtained by enlarging the rack support portion 74 in the vertical direction. The guide rail 75 may not be provided if it is not necessary to reduce the amount of movement of the rack 63 or obtain particularly high accuracy.

Further, in this embodiment, the belt 73 is provided so that the belt 73 is separated from the shield plate 9, that is, the heat exchanger 1.
The drive mechanism case 65 arranged in the space 56 formed in the upper part of 0a can be connected with a simple structure. Therefore, since it is not necessary to provide the drive mechanism case 65a adjacent to the shield plate 9, the drive mechanism case 65a is arranged rearward by utilizing the inclination of the heat exchanger 10a, and the movement path Z of the shield plate 9 is moved.
Can be provided obliquely to the upper rear, so that it is possible to reduce the increase in size of the device due to the arrangement in the vicinity of the shield plate 9.

Contrary to the above, when the horizontal dimension of the shielding plate 9 is small to the extent of the heat exchanger 10a, or when the stepping motor 64 has a sufficient mounting space, it is connected to the shaft of the stepping motor 64. A structure in which the rod 61 is directly connected by a joint is conceivable. In this case, the number of parts can be reduced.

On the other hand, as shown in FIG. 11, the connecting mechanism 60 includes a rack 63 to which the shield plate 9 is attached and a connecting rod 6.
Connection mechanism case 65 for transmitting the driving force of 1 to the rack 63
b. The connection mechanism case 65b includes a second gear 71 that is directly connected to the connection rod 61 and a rack 6 inside the case.
The third gear 72 meshes with the third gear 68, and the belt 73 that transmits the torque of the second gear 71 to the third gear 72.

The operation of the shielding plate 9 having the shutter mechanism 31 described above will be described with reference to FIGS. First, FIG.
Shows the state in which the shield plate 9 is closed. In this state, the upper ends of the teeth 68 of the rack 63 mesh with the third gear 72, the lower end of the rack 63 contacts the stepped portion 47 of the decorative cover 3, and the closed state is maintained.

Next, the opening operation will be described with reference to FIGS. 10, 11 and 13.
More specifically, when the operation signal is instructed to the stepping motor 64 via the terminal 69, the stepping motor 64 operates and the rotational torque is changed to the first gear 70 and the second gear 7.
1, transmitted to the third gear 72 via the belt 73. At this time, the drive mechanism 59 and the second gear 71 of the coupling mechanism 60 are connected.
Are connected by the connecting rod 61, the same rotational torque is transmitted to the drive mechanism 59 and the third gear 72 of the connecting mechanism 60. The rotational torque transmitted to the two third gears 72 is converted into vertical torque by the teeth 68, and the shield plate 9 attached to the rack 63 can be moved upward.

In FIG. 10, the shield plate 9 is pulled up to the first position.
It shows a state in which the suction part 7 is opened. In the present embodiment, the movement trajectory Z of the shield plate 9 and the rack 63 is set in an arc shape that substantially matches the side shapes of the shield plate 9 and the rack 63, and the center of the shield plate 9 is set to the forefront in the closed state. ing. Therefore, the shield plate 9 can be pulled up along the arcuate movement trajectory Z from the position shown in FIG. 11 to the upper diagonal rear side shown in FIG.

In this open state, the lower ends of the teeth 68 of the rack 63 mesh with the third gear 72, and the upper ends of the shielding plates 9 are shielded so as to contact the ceiling of the decorative cover 3 behind the stepped portion 47 of the decorative cover 3. The plate 9 is housed between the heat exchanger 10a that is largely inclined rearward and the large curved surface 35 of the front panel 4.

The guide plate 7 formed on the decorative cover 3
The reference numeral 5 is formed in an arc shape along the movement trajectory Z as shown in FIG. Further, by providing guide plates similar to the guide plate 75 shown in FIG. 11 on both sides of the rack 63 shown in FIG. 10, the movement of the shield plate 9 can be improved.

Further, the first suction portion 7 and the second suction portion 12
Since the width D1 of the casing surface formed between the two is set to be larger than the width (height) D2 of the shielding plate 9, the shielding plate 9 is hidden inside the indoor unit 1 at the rear part of the width D1 of the casing surface. To form a storage space for storing. Therefore, in the open state, the shielding plate 9 is not exposed to the exterior of the blowout portion 5 or the indoor unit 1, so that the designability can be improved.

25 and 26 are schematic sectional views showing that the shield plate 9 is operated in the closed state and the open state. FIG.
Reference numeral 7 is a control flow of the air conditioner having an air cleaning operation mode in addition to the cooling mode and the heating mode. Operation control in the closed state and the open state of the shield plate 9 will be described with reference to these drawings.

First, in the operation stopped state, the indoor unit 1
The wind direction plates 6a and 6b and the shielding plate 9 are closed. When the operation start instruction operation is performed by the remote controller (201), the remote controller transmits an automatic operation mode signal or a manual operation signal (202). When the microcomputer 251 receives the signal via the light receiving unit 15, the automatic operation mode is set (203) or the manual operation mode is set (204).
I do. If the automatic operation mode is set, the steps 205 to 212 described below with reference to FIG. 22 are sequentially executed.

On the other hand, in setting the manual operation mode (204), the mode manually set in advance is set as the operation mode (204). At this time, the microcomputer 251 determines whether the air cleaning mode is set (214).
If not set, step 205 is executed, and if set, the stepping motor 24 is rotated to open the wind direction plates 6a and 6b (215),
The fan motor 18 is rotated (216), and the air cleaning operation is started.

When the microcomputer 251 determines the operation stop according to the operation stop instruction from the remote controller or the set operation mode such as the timer (217), the fan motor 1
8 is stopped (218), an operation signal is transmitted to the stepping motor 24 to operate until the wind direction plates 6a and 6b are closed (219), the operation display lamp is turned off and the operation is stopped (213).

In addition to the air cleaning, a heating dehumidifying operation may be added. The heating dehumidifying operation is performed by the moving panel 9
To close the upper second suction portion 12 and the third suction portion 1
Room air is sucked in from 3 and blown out from the outlet 5. At this time, the solenoid valve 10d shown in FIGS. 2 and 10 is throttled,
The lower half of the heat exchanger 10a functions as a cooler, and the upper half and the heat exchanger 10b function as a heater. As a result, the room air sucked from the second suction unit 12 and the third suction unit 13 does not relatively flow to the lower half of the heat exchanger 10a that functions as a cooler, so that the heating dehumidification operation is performed. You can do it. The normal dehumidifying operation is performed by opening the moving panel 9 as described later.

Further, a circulator operation may be added as a mode in which the moving panel 9 is closed and operated.

As shown in FIG. 9, the filter 11 is formed on both inner wall surfaces and the center of the decorative cover 3, and the guide rail 7 is formed.
The first suction part 7 and the second suction part 1 are supported by 6
It is arranged between the second and third suction portions 13 and the heat exchanger 10. The filter 11 is provided with a filter cover 8 on the lower front surface corresponding to the first suction portion 7 and an air purifying filter 30 at a position behind the intersection P1.

The structures of the filter 11 and the filter cover 8 will be described with reference to FIGS. In FIG. 14, in this embodiment, the filter 11 is divided into left and right, a dense net 11a and a frame 11b, which are molded from PP resin.
The one that is heat-welded is used. Of course, the net 11a and the frame body 11b may be integrally molded, or another flexible resin material may be used.

Particularly, the appearance can be improved by forming the filter 11 by, for example, injection molding so that the unevenness of the net 11a and the frame 11b is made small and a uniform curved surface is formed as a whole. By adopting such an integral filter, the appearance of the inside of the first suction portion 7 when the shield plate 9 is opened can be improved without attaching the filter cover 8.

As shown in FIG. 8, the filter 11 conceals the openings 58, 12a, 13a in which the first suction section 7, the second suction section 12, and the third suction section 13 are substantially opened. Is arranged as. The filter cover 8 is formed into a punching shape by punching or punching a large number of openings 77 that are rougher than the filter 11 on the front surface, and a reinforcing rib 78 is formed on the inner circumference (on the filter 11 side) and is formed on the reinforcing rib 78. A mounting rib (not shown) is fitted in a mounting hole (not shown) formed in the frame 11b so as to be detachably mounted.

In FIG. 15A, the square openings 77 of 3 mm square are formed at a pitch of 4 mm, and in FIG. 15B, the regular hexagonal openings 77 having a parallel line width of 3 mm are formed at a pitch of 4 mm, that is, the openings. Dimension between 77 and opening 77 is 1
It is formed in a honeycomb shape by opening so as to be provided in mm. FIG. 16 is a partially enlarged view of FIG. 15 (b). The filter cover 8 of the embodiment is made of ABS resin and has a plate thickness dimension of 1.0 mm. In addition to ABS resin, the material of the filter cover 8 may be synthetic resin such as PET or PP, or metal such as iron plate or aluminum.

According to the embodiment of FIG. A, an aperture ratio of 54% is obtained. The substantial suction port area at this opening ratio is shown in FIG.
Width 738 mm × height 85 mm of the first suction port 7 shown in
= 54% of 627.3cm ^2, is about 305 cm ^2.
This is because the front inlet of the conventional indoor unit is 730mm.
× Height 130 mm = 949 cm ² , which is very large compared to the fact that only 294 cm ² (aperture ratio 31%) was opened when the lattice was subtracted even if the space was provided in a larger space than the present embodiment. A substantial suction area can be obtained.

According to the embodiment of FIG. B, an aperture ratio of 64% is obtained. The substantial area of the suction port at this opening ratio is about 3% of 64% of the area 627.3 cm ² of the first suction port 7.
It will be 61 cm ² . However, since an unopened portion was provided in the periphery in order to secure sufficient strength, it was actually 350 cm ² . According to the filter cover 8 of the embodiment shown in FIG. B, although the space provided with the suction port is smaller than the conventional one, the suction area can be 1.2 times as large as that of the conventional front suction area. In addition to this, in the heat exchanger 10, since the portion located above the filter cover 8 communicates with the first suction port 7, this portion is sucked from the first suction port 7 and the filter is removed. Indoor air that cannot pass through the cover 8 flows. That is, the area of the first suction port 7 is 627.3c.
m ² to about 350c of the substantial suction area of the filter cover 8
air sucked from the area of about 277cm ² minus the m ² so that the flows. However, since the bending loss of the air flow and the inflow of air from the second suction port 12 influence, the actual increase of the inflow amount was less than half.

Moreover, since the openings 77 have a honeycomb shape, even if the dimension between the openings 77 is 1 mm, the strength is large and the strength is large, so that the plate thickness can be reduced. The plate thickness in this case varies depending on the material and the size and shape of the reinforcing rib 78, but according to the embodiment, it is 0.5 mm or more in the case of a steel plate or the like having high rigidity, and 1.0 mm of the soft resin. 2.0 mm
Alternatively, the distance is preferably 3.0 mm in the case of a non-woven fabric or net having a not so high rigidity.

Although a thickness of more than 3 mm is not a problem, the larger the thickness, the closer to the ventilation grille of the conventional suction grill, which is approximately 7 mm (thickness is approximately 5 mm), and the ventilation resistance is also increased. It is not preferable because it approaches proportionally and wastes resources. In the case of the above-mentioned non-woven fabric or net, if it is attached to a dedicated frame or a filter frame and used, the thickness can be 3.0 mm or less.

When the filter cover 8 of the embodiment of FIG. B is made larger, for example, the height dimension of the first suction port 7 shown in FIG. 4 is 85 mm. In addition, when the height of the filter cover is 130 mm, the substantial suction area is about twice as large as the conventional suction area of 294 cm ² , which is 596 cm ^2.
Can be cm ² .

That is, the lateral width dimension 73 of the first suction port 7
When 8 mm is multiplied by a height dimension of 130 mm, an area of the first suction port and the filter cover of 959.4 cm ² is obtained, which is about 614 cm ^{2 which} is 64% of the area of 959.4 cm ^2.
Was obtained as the suction area, but since the unopened portion was provided in the periphery in order to secure sufficient strength as described above, the substantial suction area was 596 cm ² .

In this case, since it is not possible to provide a large surface having no suction port around the front panel 4,
It is not possible to dispose a single shield plate 9 as shown in FIGS. 9 to 11. Therefore, a shielding plate divided into a size that can be housed in a space behind the surface not having the first suction port 7 around the front panel 4 or a shielding means such as a blind or a soft sheet that can be wound up is adopted. Or an indoor unit with no shielding means.

In this embodiment, the honeycomb shape of the opening 77 of FIG. B is adopted, and the filter cover 8 is a resin molded product (made of ABS resin and having a plate thickness of 1 mm). It may be formed of other materials. Also, taper or round the edge on the windward side of the opening 77,
This reduces the flow resistance of the sucked air to improve the flow of air to increase the air volume, and since there is no corner on the windward side edge of the opening 77, the edge of the opening 77 is It is possible to prevent dust and dirt from getting caught and clogging.

The shape of the opening of the filter cover 8 may be a circle, an ellipse, a rhombus, a rectangle, etc. in addition to the above-mentioned square or regular hexagon. In the case of a rectangle and a rectangle, it is preferable that the size of the opening area and the opening ratio are larger than those of a square and a regular hexagon in consideration of ventilation resistance. For example, the short side of a rectangle is 3 mm on one side of the square shown in FIG. 15a.
2/3 or more of the same size and the long side is 1.5
The range is up to 3 times.

Within this range, ventilation resistance can be made equal to or half that of a square, and dust and dirt attached to the filter are less visible as in the case of a square. It is preferable that the short side is ⅔ and the long side is doubled so that it is more difficult to see than a square and the ventilation resistance can be about 3/5.

As described above, in this embodiment, the filter 11 is used.
The filter cover 8 is coarser than the filter 11 on the front part of the
Since the double structure is provided, the filter cover 8 can catch large dust and the filter 11 can catch fine dust. Therefore, the period until the filter 11 is clogged becomes long, and the filter can be operated in a state where the ventilation resistance is small accordingly, so that the state in which the air flow amount is large and the heat exchange amount is large can be maintained for a long time. As a result, the power consumption can be reduced.

Further, the filter cover 8 not only reduces the ventilation resistance of the air, but also has a flat punching shape in which the openings are densely formed, so that the suction port when the air conditioner is in use is The flat (plate-like) filter cover 8 arranged behind the first cover 7 disappears as a large opening to eliminate the impression as an opening, and the first suction section 7 is fitted to the large curved surface 35 (integrated. The design effect can be improved by making it look like a two-dimensional form.

In particular, the cover 8 has a honeycomb shape having a small opening, and since this cover has a large strength, it has a plate thickness of 0.1 mm as shown in FIG. It can be made as small as 5 mm to 3.0 mm, and since the plate thickness dimension is small, ventilation resistance does not occur even if the opening is tilted in the direction of the cross-flow fan, that is, the ventilation direction, and is not opened. Therefore, the dimension in the ventilation direction of the embodiment can be made the same as the plate thickness dimension. Therefore, as shown in FIG. 17 (a) of the related art, a large dimension in the ventilation direction of the suction grill, for example, about 7 mm (plate thickness The size can be made smaller than the size (about 5 mm). In addition to this,
When the opening areas are the same, the honeycomb-shaped opening can have a larger opening ratio than the round hole or the square-shaped opening. With these, the ventilation resistance can be significantly reduced.

A space 7 is provided between the cover 8 and the filter 11.
Reinforcing ribs 78 are formed so as to form 9. From this, the room air that has passed through the cover 8 is
The flow velocity is made uniform at 1, and then sucked into the filter 11. Therefore, even if the cover 8 is partially clogged, the distribution of the air flow that has passed through the cover 8 is made uniform by the space 79, so that the filter 11 is also less likely to be partially clogged and the flow rate of the air flow is reduced. Since it is difficult to do so, the heat exchange efficiency is improved.

Further, the space 79 makes it difficult to see the filter 11 through the cover 8, so that the design can be improved. Further, since the cover 8 is detachably attached to the filter 11, it can be cleaned independently without being removed from the indoor unit 1 together with the filter 11.

Further, in this embodiment, the air cleaning filter 30 can be attached to obtain the air cleaning function in addition to the cooling and heating. The air purifying filter 30 has the same structure as the cover 8 and is detachably attached to the filter 11.
Therefore, it is easy to remove it from the indoor unit 1 together with the filter 11 and replace it with a new one. Also,
Since the air cleaning filter 30 is arranged in the space behind the intersection P1, it is possible to reduce the size of the device.

Further, the arrangement of the filter 11 of this embodiment is as follows.
Since it is not directly provided in the heat exchange with the three main suction sections, the ventilation resistance of the suction section is reduced and a large opening area is obtained in terms of function, and the airflow is slow behind the intersection P1, The passage of the slow airflow can improve the cleaning efficiency of the air cleaning filter 30.

FIG. 18 is a sectional view showing a cross-flow fan suitable for being combined with the above embodiment. This cross-flow fan 1
6 has a plurality of impellers in which blades 16a and rings 16b are combined as shown. The width dimension of the blade 16a is different at both ends in the longitudinal direction, and the line connecting the both ends is a straight line and has an elongated trapezoidal shape.

The cross-flow fan 16 of FIG. 18 described above can suppress wind noise due to the difference in gap size between the cross-flow fan of the air conditioner and the nose provided opposite to the cross-flow fan of the air conditioner, and the size in the direction perpendicular to the longitudinal direction. Has a different portion depending on the position in the longitudinal direction, and thus does not easily resonate in the gap between the adjacent blades. Therefore, the noise is excellent and the air volume can be increased.

The slender trapezoidal blade 16a can be easily manufactured by either resin injection molding or sheet metal processing, and in the case of sheet metal processing, it is possible to reduce the waste material at the time of material punching.

The elongated trapezoid does not have to be used.
As described above, a shape having a curved line may be used as long as the dimension in the direction perpendicular to the longitudinal direction has a portion that differs depending on the position in the longitudinal direction.

Next, the operation and operating method of the air conditioner according to this embodiment will be described with reference to FIGS. First, referring to FIG. 21, the indoor unit 1 according to the present embodiment.
Includes a control board 250 in the electrical equipment box 25, and a microcomputer 251 provided on the control board 250 operates the fan motor 18, the stepping motor 64 of the shutter mechanism section 31, and the stepping motors 24 for operating the wind direction plates 6a and 6b. A switch 252 for detecting the operation of the shield plate 9, a room temperature thermistor 253, an indoor heat exchanger thermistor 254,
The light receiving unit 15 receives an operation signal from the remote controller for the display unit 14 and the like, and controls the indoor unit 1 as a whole. The control board 250 is also connected to an outdoor unit (not shown) and the solenoid valve 10d shown in FIGS. 2 and 10, but it is omitted here. This driving operation will be described with reference to FIG.

First, in the operation stopped state, the indoor unit 1
The wind direction plates 6a and 6b and the shielding plate 9 are closed. When the remote controller issues an operation start instruction operation (201), the remote controller sends an automatic operation mode signal if automatic operation is selected, and one operation mode is manually selected from various operation modes. If there is a preset signal, for example set temperature,
A signal such as cooling / heating is transmitted (202).

When the microcomputer 251 receives the above-mentioned signal through the light receiving section 15, and when the signal of the automatic operation mode is received, the operation mode is automatically set based on the temperature signal detected by the room temperature thermistor 253 (203). If it is a manually set operation mode, the previously set operation mode is set as the operation mode (204), and the display unit 14
The operation status is displayed on the screen and the preliminary operation is started (2
05).

In this preparatory operation, preheating operation during heating is mainly performed (the indoor fan is stopped or kept at an ultra-low speed until hot air can be blown out). During cooling, the microcomputer 251 sends an operation signal to the stepping motor 24 and the stepping motor 64 when the operation preparation is completed after starting the preliminary operation. The stepping motor 24 that receives the operation signal
The wind direction plates 6a and 6b are opened by rotating them to a predetermined angle set in advance corresponding to the operation mode.

The stepping motor 64 rotates the first gear 70, the second gear 71, and the third gear 72 shown in FIG. 10 to move the rack 63 upward to move the shield plate 9 to a predetermined position shown in FIG. It is moved to and stored in the upper space of the indoor unit (206). In this step 206, the wind direction plate 6
The a and 6b and the shielding plate 9 operate simultaneously, and the completion of the operation is detected by the switch 252. Next, the microcomputer 251
The fan motor 18 (207) and the compressor (208) are operated to start normal operation (209).

When the microcomputer 251 determines the operation stop according to the operation stop instruction from the remote controller or the operation mode set by the timer or the like (210), it stops the compressor and the fan motor 18 (211), and the stepping motor 24. And an operation signal to the stepping motor 64 to simultaneously operate the wind direction plates 6a and 6b and the shielding plate 9 to the original closed state (212), and turn off the operation display lamp to bring the operation to a stopped state (213). . It should be noted that the microcomputer 251 may blink the display unit 14 in correspondence with the operation speed to indicate that the stepping motor 64 is operating, that is, the shielding plate 9 is moving.

In the present embodiment, the fact that a driving instruction has been given is displayed on the display unit 14, and the operations of the wind direction plates 6a and 6b and the shielding plate 9 are interlocked with the fan motor 18 so that the blowing condition can be changed. As a matter of fact, the question that air is not blown even though the wind direction plates 6a and 6b and the shield plate 9 are open is solved, but it is opened when the operation ON signal (201) or the operation mode is set (203, 204). By setting the state, it is possible to formally represent that the driving instruction is given. Further, in the above-described embodiment, the operation of the wind direction plates 6a and 6b and the shield plate 9 is performed at the same time, but the shield plate 9 may be continuously operated after the wind direction plates 6a and 6b, or may be operated after a certain time. Good.

Further, in this embodiment, the shielding plate 9 is controlled so as to be closed when the air conditioner is not in operation and is fully opened when the air conditioner is in operation. However, the rotational speed of the fan motor 18 is changed by moving the shielding plate 9. It is also possible to provide a means for converting into an amount and control the opening amount of the shielding plate 9 in accordance with the air flow amount.

For example, in the light wind operation, the shielding plate 9 is closed, and the indoor air is sucked from the second suction portion 12 and the third suction portion 13, and in the weak wind operation, the second and third suction portions described above. In addition, the shield plate 9 is partially opened so that the first suction unit 7 also sucks the air. In strong wind operation, the shield plate 9 is fully opened to suck the three suction units. In this way, when a large air volume is not required, the wind noise of the cross-flow fan that comes out from the first suction portion arranged in the front is blocked and reduced, so that silent operation can be performed.

Next, a method of attaching / detaching the filter 11 will be described. In this embodiment, an exchange mode for attaching and detaching the filter 11 is provided. First, the exchange mode button provided on the remote controller is operated to transmit a signal.
The microcomputer 251 operates the stepping motor 64 to move only the shield plate 9 to fully open the first suction section 7. In this state, the user removes the front panel 4 through the handholding recess 37, or pivots the upper end as a fulcrum to open the front panel 4, and holds both sides of the filter 11 by hand in this open state to hold the indoor unit 1 You can easily pull it out from. At this time, since the cover 8 and the air cleaning filter 30 are attached to the filter 11 of the embodiment, the three members can be removed by one operation.

Further, since the filter 11, the cover 8 and the air cleaning filter 30 are constructed so as to be detachable, they can be detached and cleaned independently. Further, since the front panel 4 has a flat plate shape without a grid, stains can be easily removed by wiping it off. Therefore, unlike the conventional example, it is not necessary to remove and clean the front panel and the filter on which the suction slit is formed.

Further, since the cover 8 of this embodiment is a small member separated from the front panel 4 and has a shape in which dust is unlikely to adhere, handling and cleaning operations are significantly easier than in the conventional example. When installing the filter 11, attach the cover 8 and the air cleaning filter 30 at predetermined positions,
The front panel 4 is mounted on the front surface by mounting along the guide rails 76. Then, by operating the exchange mode button provided on the remote controller again, the shield plate 9 can be returned to the original closed state.

Although the remote controller is provided with the exchange mode button in this embodiment, it may be provided in the indoor unit 1. For example, by providing the filter replacement mode button on the step portion 47 hidden by the front panel 4, it is possible to prevent the operation of the shield plate 9 during the attachment / detachment of the front panel 4 and improve the safety. Also, the same effect can be obtained by providing a switch on the mounting rib 50 and the mounting hole 49 of the front panel 4 so that the attachment / detachment of the front panel 4 and the operation of the shielding plate 9 are linked.

Next, another application example regarding the operation of the shielding plate 9 will be described. 23 and 24 show an embodiment in which the shielding plate 9 is provided with vibration preventing means 300 and 301. 23 is a sectional view of a main part of the shield plate 9 in an open state, FIG. 23 is a sectional view of a main part of the shield plate 9 in a closed state, and FIG. 24 is a first suction part 7 of the shield plate 9 in an open state. 3 is a horizontal cross-sectional view of an essential part of the left end of FIG.

In this embodiment, FIG. 23 shows the case where the shielding plate 9 is pulled up, and the vibration preventing means 30 is placed at a position where the shielding plate 9 contacts the ceiling surface of the decorative cover 3.
0, and the vibration prevention means 301 is provided at a position where the shield plate 9 is closed and the lower end portion of the rack 63 comes into contact with the step portion 47.
Is provided. The vibration preventing means 300, 301 may be a soft material such as rubber or a convex rib that acts to hold down the movement track Z from the lateral direction.

For example, in FIG. A, the vibration preventing means 300 is made of a soft material, and the vibration preventing means 300 is provided in the first suction portion 7.
Are arranged in an appropriate number in the lateral direction (within the width dimension).
According to the vibration preventing means 300, the movement of the shield plate 9 is softly received and the shield plate 9 is pressed in the direction of the arrow, so that there is an effect of preventing the vibration of the shield plate 9 during operation.

In FIG. B, the vibration preventing means 301 having a concave cross section and a wide opening is made of a soft material, and the vibration preventing means 301 is arranged in the lateral direction (within the lateral width dimension) of the first suction section 7. It is arranged appropriately. This vibration prevention means 30
According to 1, the lower end of the shield plate 9 is supported from the front-rear direction, so that damage to the shield plate 9 and the shutter mechanism unit 31 due to vibration during transportation can be reduced, for example. Of course, when the mode of operating the air conditioner at the time of closing is adopted, there is an effect of preventing the vibration of the shield plate 9 during operation.

In the embodiment shown in FIG. 24, a partition plate 302 is provided at a position above and above the upper end of the opening 58 of the first suction portion 7 and at the rear. The partition plate 302 has an appropriate gap that makes it difficult for a finger to enter the opening 303 between the upper end of the opening 58 and the partition plate 302 when the shielding plate 9 is pulled up. It is stored so as to have 304. According to this structure, the user cannot forcibly pull down the shielding plate 9 housed in the space above the housing, so that the shielding plate 9 and the shutter mechanism section 31 are prevented from being damaged, and Can improve the safety of.

At the time of closing, the lower end portion of the shielding plate 9 is moved below the opening to be housed in the main body so that it cannot be forcibly pulled up. Further, in this embodiment, the convex rib 305 is provided on the reinforcing rib 78 (shown in FIG. 15B) inside the lower end of the shield plate 9, and the convex rib 306 is further provided on the lower end portion of the front face of the shield plate 9. The convex ribs 305 and 306 are appropriately arranged in the lateral direction (within the lateral width dimension) of the first suction portion 7 at predetermined intervals.

Further, since the convex rib 306 is exposed from the opening 58 as the shield plate 9 moves, it appears.
It is provided as small as possible in a portion in contact with the upper end of the opening 58 at the time of closing so as not to impair the design. By adopting such a structure, the gap 304 is reduced to reduce the possibility of a finger entering, and the deflection of the shielding plate 9 which is long in the lateral direction (horizontal direction) is reduced, so that the shielding plate 9 during operation can be reduced. It has the effect of preventing vibration and chattering. In this embodiment,
Although the convex ribs 305 and 306 are provided on the lower end of the shielding plate 9,
A similar convex rib 3 is provided at a position where the upper end of the shielding plate 9 is in contact when closed.
By providing 05 and 306, it is possible to obtain the same effect as the above at the time of closing and reduce the obstacle at the time of transportation.

As described above, in this embodiment, the upper and lower surfaces and the front surface are rounded bodies formed by the large curved surfaces 33, 34 and 35, and the shield plate 9 is provided on the lower front surface of the large curved surface.
The first suction part 7 including the second suction part 12 and the third suction part 13 are provided on the large curved surface 33 of the upper surface of the housing which is hard to be noticed.
And the blowing portion 5 provided with the wind direction plates 6a and 6b having a large curved surface continuous with the large curved surface 34 on the lower surface of the housing.

By doing so, when the operation of the air conditioner is stopped, the first suction portion 7 and the blowing portion 5 arranged at the most noticeable position are separated by the shielding plate 9 and the wind direction plates 6a and 6b. By closing it so that it has a one-dimensional appearance with a continuous exterior surface that is continuous, it has a compact form that is mainly compatible with the interior (easy fusion) of the wall in the installed state, and the operating state Then, the shielding plate 9 is housed in the indoor unit 1, and the first suction part 7 is fully opened at the most efficient position, and the second and third suction parts 12 on the upper surface,
The indoor air can be efficiently sucked in by 13 and can be blown out from the blowing section 5 provided with the wind direction plates 6a and 6b for controlling the angle according to the operation mode.

In particular, since the first suction section 7 is closed by the shield plate when the air conditioner is not operating, dust is not collected on the horizontal or inclined grill of the front suction port as in the conventional case, and cleaning is easy. Can be improved. And the first
Inside the suction part 7, a cover 8 and a filter 11 separated from the front panel 4 are located. This cover 8
Has a large number of holes densely punched. A filter 11 is provided close to or in close contact with the cover 8 so as to overlap with the cover 8.

As a result, the front panel 4 obtains a large aperture ratio in the first suction section 7,
When the air conditioner is viewed at a distance of a normal living environment, for example, a distance of 1.5 m to 2 m, many holes of the cover 8 are like a flat plate in which fine dots are densely drawn. appear.

Moreover, since the cover 8 is located behind the first suction section 7, the first suction section 7 does not appear as an opening in appearance and the cover 8 does not appear to be an opening. It merges up and looks like a plane with different brightness.
Therefore, the opening of the first suction section 7 can be made inconspicuous, and the cleanability can be improved as compared with the one having the grill. In addition, it is possible to reduce vibration and noise caused by the movement of the shielding plate 9, and further reduce obstacles.

28 and 29 are front views showing a remote controller 150 according to an embodiment of the present invention. For the purpose of simplifying the operability, the remote controller according to the present embodiment has operation buttons 156 that are relatively infrequently used disposed inside the door 151, and is used with the door 151 closed as shown in FIG. High "Run / Stop" button 1
Only 53, the "good night timer" button 154, the "dehumidification" button 155, etc. are exposed to the outside.

Therefore, the number of operation buttons is small when the door 151 is closed, which facilitates identification of the operation buttons and contributes to prevention of operation mistakes. Fifteen
Reference numeral 2 denotes a liquid crystal display unit, which displays corresponding parts corresponding to the operations of the various operation buttons. The remote controller 150 of the embodiment generally uses an infrared oscillation method, but may also use a radio wave oscillation method.

An embodiment of the operation control of the shielding plate 9 and the wind direction plates 6a and 6b and the operation of the remote controller when the remote controller is used will be described. When operating / stopping the air conditioner, by pushing the “start / stop” button 153 of the remote controller 150, a running signal or a stop signal is transmitted. This operation signal or stop signal is the above-mentioned "run / stop" button 153.
It is switched and transmitted every time is pressed.

The switching of the operation mode is performed by the buttons 15 covered with the door 151 of the remote controller 150.
Every time the “operation switching” button 6 is pressed, a cyclically switched signal such as an automatic operation signal → a heating operation signal → a dehumidification operation signal → a cooling operation signal → a blow operation signal → an automatic operation signal is transmitted. In response to the transmission of this signal, the display on the liquid crystal display unit 152 of the remote controller 150 is automatically
It switches cyclically like heating → dehumidification → cooling → ventilation → automatic.

When the "automatic wind direction" button 157 was pressed during the operation of the air conditioner, the wind direction plates 6a and 6b shown in FIGS. 1, 8, 13 and 15 were opened at a predetermined angle. In the case of the state, the state is switched to the continuous swing state, and in the case of the continuous swing state, the wind direction angle at the time when the button 157 is pressed is stopped.

When the "automatic wind direction" button 157 is pressed while the air conditioner is stopped, the shield plate 9 operates so as to open the first suction port 7 from the state where it is shielded, and the filter 1
Open the lower front half of 1. Thereby, the filter 1
The shield plate 9 does not become an obstacle when the 1 is attached and detached, and the attachment and detachment becomes possible. When the filter 11 is attached or detached, the upper end of the front cover 4 shown in FIG. 8 is rotated to be opened as a fulcrum, and the lower portion of the filter 11 is removed by pulling it toward the front. Good.

In this way, the same button is used for different control during operation and during operation stop, thereby reducing the number of operation buttons. In this case, another control can be easily understood by additionally writing it near the button as shown in FIG. 28, and it is possible to prevent the operability from being sacrificed even if the number of buttons is reduced.

The "good night timer" button 154 is used as a "off timer" for stopping the operation at a predetermined time in the normal operation, and the "dehumidification" button is selected from the above-mentioned cyclic multi-mode operation. The dehumidifying operation is to switch a plurality of dehumidifying operation modes having a timer function.

By operating both the "good night timer" button 154 and the "dehumidification" button at the same time, the shielding plate 9 and the wind direction plates 6a and 6b can be continuously and repeatedly operated, and both buttons can be simultaneously operated again. Operation can be stopped by pressing. As a result, the shield plate 9 and the wind direction plate 6 can be operated without energizing the compressor, the electric valve, etc.
Since a and 6b can be operated, it is possible to perform an operation test after assembling the indoor unit, or to easily and easily confirm the operation after installation in the consumer's house, and to avoid unnecessary power consumption during the confirmation operation. It can prevent consumption.

The same effect can be obtained when a demonstration is conducted at a store, and it is not necessary to actually perform air conditioning in the demonstration at the store, and the operating time is long, so unnecessary power consumption is not required. The effect of preventing the consumption of is extremely large. Further, since the dedicated button is not provided, it is possible to prevent the general consumer from operating, so that the consumer mistakenly operates and the consumer sees only the shield plate 9 and the wind direction plates 6a and 6b in a continuous and repetitive operation. In this case, it is possible to prevent erroneous recognition as a failure. Therefore, it is not necessary to make unnecessary repair requests.

Next, the control of one embodiment of the present invention will be described with reference to FIGS. 30 to 35. FIG. 30 is a diagram showing a control system. The signal transmitted from the remote controller 150 is received by the microcomputer of the indoor unit, and this microcomputer sends a control signal for controlling each functional component of the indoor unit, and also sends a control signal to the microcomputer of the outdoor unit. The microcomputer of the outdoor unit that receives the signal sends an operation signal to each functional component of the outdoor unit, and also feeds back the operation status of each functional component to the microcomputer of the indoor unit.

For example, when a signal for starting heating operation is transmitted from the remote controller, the microcomputer of the indoor unit receives it. The microcomputer of the indoor unit that receives the signal for starting the heating operation sends a signal for starting the operation operation to the microcomputer of the outdoor unit, and the operation signal is sent from this microcomputer to the compressor and the fan motor to operate the compressor and the fan motor. Start.

On the other hand, an operation signal is sent from the microcomputer of the indoor unit to the fan motor, the stepping motor for the shielding plate and the stepping motor for the wind direction plate, which are other functional parts of the indoor unit, and the indoor fan rotates, When the shield plate stepping motor rotates, the shield plate operates from the closed state to the fully open state. Further, the wind direction plate is rotated to a predetermined angle (generally, about 60 to 75 degrees downward) by the rotation of the stepping motor for the wind direction plate.

Further, signals detected by the detector of the outdoor unit, such as signals of the intake air temperature of the outdoor unit and the temperature of the outdoor unit heat exchanger, are transmitted to the indoor unit microcomputer via the outdoor unit microcomputer. Based on the transmitted signal value, a new operation control signal is sent from the indoor unit microcomputer to each functional component such as the motor-operated valve, compressor, indoor fan and outdoor fan, and each functional component responds to the signal. The heating operation is performed so that the indoor temperature becomes comfortable. Note that these operation controls are similarly performed not only in the heating operation but also in the cooling operation or the dehumidifying operation.

Further, the compressor and the motor-operated valve in the figure are the main functional parts constituting the refrigeration cycle, the compressor compresses and circulates the refrigerant, and controls the rotation speed of the built-in compressor motor. As a result, the circulation amount of the refrigerant changes and the air conditioning capacity can be controlled. The motor-operated valve has a throttle device capable of adjusting the flow rate in a fully closed state, a fully opened state, and a linear amount according to information from detectors of the indoor unit and the outdoor unit or an operation signal due to a difference between heating operation and cooling operation.

FIG. 31 shows an example of a specific control operation of the embodiment shown in FIG. First, when the power is turned on, the shielding plate and the wind direction plate operate as closing → opening → closing as shown in the figure, and the shielding plate operates from the state where the suction port is shielded to the state where the suction port is fully opened, After that, it operates to shield the suction port again and reciprocates the shield plate once, and the wind direction plate opens from the state in which the air outlet is closed to the range of the predetermined opening angle, and then closes again, before the start of operation. It is possible to confirm whether or not the indoor unit operates normally by performing the preparatory operation.

At the start of the operation, the shield plate operates from the closed to the open as shown by the operation of the "start / stop" button of the remote controller, and operates so as to change the suction port from the closed state to the fully opened state. The panel inlet is designed to allow indoor air to be sucked in. Further, the wind direction plate is opened from the closed state to the initial state of each operation mode. Note that when stopped, the operation is the reverse of the above.

When cleaning the filter, the air conditioner is generally stopped. When the "automatic wind direction" button is operated with the remote controller when stopped, the microcomputer of the indoor unit receives the "automatic wind direction" signal. However, since it is programmed in the microcomputer to replace it with the "filter" signal, it operates as a "filter" signal and the shield plate moves from the closed state to the fully open state.

In the demonstration operation, an operation signal is transmitted by pressing the "dehumidification" and "good night timer" buttons of the remote controller at the same time, and the shield plate moves from the closed state to the fully open state and then makes one reciprocation from the closed state to the closed state. Also, the swing with the wind direction plate open is continuously repeated together. In addition to the above operation, only the shielding plate may perform the repeated operation.
For the shield plate and the wind direction plate, control for intermittently making one reciprocating operation or control for repeating one reciprocating operation several times can be considered.

When the demonstration operation is released, the operation release signal is transmitted by pressing the "dehumidification" and "good night timer" buttons of the remote controller at the same time as in the demonstration operation, and the shield plate and the wind direction plate are closed. Become.

The above demonstration operation is not an actual use state but a mode used for sales promotion, operation test after assembling, or operation confirmation after installation in a consumer's house. The operation control method may be considered.

32 to 35 are diagrams showing the operation of the functional parts in each operation state in the control operation, and show the state in which the hatched portions are operating. FIG.
2 shows the operation when the power is turned on. The shield plate and the wind direction plate are operated after the power is turned on, and the electric valve is operated after the operation is completed. The shield plate and the air discharge port for opening and closing the front suction port are shown. The solenoid valve for the refrigeration cycle is operated after the wind direction plate operates normally, so it is possible to confirm the operation before operating the air conditioner and to respond quickly when an abnormality occurs. It is a thing.

FIG. 33 is a diagram showing the operation of each functional component when the heating operation is started. When the heating operation starts, the compressor and the outdoor fan operate immediately (not shown), but the heat exchanger of the indoor unit does not warm up immediately, so the shielding plate does not operate immediately after the operation starts (shielding state), and the indoor fan Is operated at an ultra-low speed that is barely noticeable to the user's skin, keeps this operating state until the heat exchanger of the indoor unit is sufficiently warmed (generally about 40 ° C), and It prevents the cold air from coming out of the discharge port and impairing comfort.

The operation at the time of starting the heating operation is referred to as "preheating" in the figure. Here, the shielding plate was not operated (closed state), and the indoor fan was rotated at an extremely low speed, so the heat exchanger of the indoor unit and the warm air around it were buoyant and the suction port on the upper surface of the indoor unit or the front suction port. Leakage from the inside is suppressed, which heats the heat exchanger in the indoor unit quickly, which shortens the heating start-up time and improves comfort. It should be noted that when the heat exchanger of the indoor unit is sufficiently warm and the preheating operation is completed, the shielding plate is operated (fully open state), and the indoor fan also gradually increases its rotation speed to shift to stable heating operation. Of.

After the heating operation is started, when the indoor air temperature reaches the set temperature and the refrigeration cycle operation is temporarily stopped, the indoor fan is operated at a low speed. As a result, the warm air in the room tends to gather in the vicinity of the ceiling as an ascending air flow, and by blowing it toward the floor surface, the indoor air temperature distribution is made uniform and the temperature near the floor surface is low. Make sure you don't restart driving.

During the low speed operation of the indoor fan which is stopped at the set temperature, the low speed rotation of the indoor fan causes the wind speed to be low and the higher the temperature of the air, the easier it is to lift upward. There is a risk that the first suction section 7 located immediately above may be sucked into the first suction section 7 and may not be blown out near the floor.

In order to eliminate this fear, a shield plate should be used first.
By closing the suction part 7 of the
Can be prevented from being sucked into. Moreover, the shield plate is the first
By closing the suction part 7 of the above, the warmest air at a position close to the ceiling is sucked from the suction port on the upper surface of the housing and blown out toward the floor surface. As a result, warm air can be prevented from being sucked into the first suction portion 7, and comfort can be improved.

FIG. 34 is a diagram showing the operation of each functional component at the start of the cooling and dehumidifying operations. Immediately after the start of operation, the outdoor fan (not shown) and the compressor are operated to perform the refrigeration cycle operation in the cooling or dehumidification cycle, and the time until the heat exchanger of the indoor unit becomes cold (generally, approximately Thirty
For about a second), the shield plate is not operated (closed state), and the indoor fan is not operated (stopped state) to perform the preliminary cooling.

That is, even if the refrigerating cycle is operated so that the refrigerant is circulated during the above time, no air is blown from the air discharge port of the indoor unit.
The odor of an uncooled heat exchanger is not discharged indoors. When the heat exchanger of the indoor unit reaches a sufficiently cooled temperature (after about 30 seconds), the shielding plate is operated (fully open state) and the indoor fan is controlled to gradually increase its rotation speed and stabilize. It will shift to the operation that was done.

During dehumidification, the indoor heat exchanger 10 is formed by squeezing the solenoid valve 10d shown in FIGS. 2 and 10, and the cooling portion (the lower half of the heat exchanger 10a) and the reheating portion (the heat exchanger 1) are formed.
When the temperature of the cooling part of the upper half of 0a and the heat exchanger 10b) reaches a sufficiently cooled temperature (after about 30 seconds),
Similar to cooling, the shield plate is operated (fully open state), and the indoor fan is also controlled to gradually increase the rotation speed, and the operation is shifted to stable operation. The rotation speed of the indoor fan at the time of dehumidification is set to be lower than the rotation speed of the indoor fan at the time of cooling so that water in the air is easily condensed.

FIG. 35 is a diagram showing the operation of each functional component at the time of demonstration. When the demonstration signal is transmitted from the remote controller, the shielding plate, the wind direction plate and the indoor fan are operated, and the signal is transmitted again. The operation of the mechanical parts can be stopped.

According to the above embodiment, the substantial suction area of the front suction port can be increased as compared with the prior art, and the strength of the flat panel portion of the front panel and the strength of the makeup cover can be improved to improve the makeup. The opening area of the top suction port could be expanded without increasing the cover plate thickness. As a result, the area of the suction port is increased by about 30% as a whole, and a large amount of air can be sucked in, so the air volume is also increased by 30%, the power and efficiency can be greatly improved, and the quietness is the same.
The power to warm, cool, dehumidify, and energy-saving performance can be improved significantly.

For example, as shown in FIG. 20, when the dehumidifying air volume is improved by about 30%, the indoor humidity is increased by about 50%.
It took about 45 minutes to reach 30%, but it was reduced to about 30 minutes. As a result, power consumption could be reduced by about 2% during normal operation.

Since the honeycomb-shaped filter cover 8 has a high strength and is thin and small in thickness, it is extremely smaller than the thickness of a conventional lattice and has extremely low air resistance. Therefore, the air volume can be increased.

Since the blades of the cross-flow fan have tapered shapes with different widths in the length direction, the air flow rate is 3
The operating noise does not increase even if it is increased by 0%, and it has improved comfort by achieving both quietness and high-performance speedy cooling / heating / dehumidifying operation. This also reduced power consumption by about 1% during normal operation.

By adopting the shielding plate, the filter cover 8 and the once-through fan, the air volume is increased by about 30%, and moreover, at the time of heating, the warm air warmed by the multistage bending heat exchanger can be surely reached to the feet. I was able to improve the comfort zone above 24 ℃ by 3 times compared to the conventional one. This is a comfortable zone in a state where the floor temperature is warmed to some extent after the start of the heating operation, and is a measurement result at the time when about two hours have elapsed after the start of the heating operation.

Further, since the shielding plate was kept closed until the heat exchanger in the room was sufficiently warmed, the heat exchanger could be warmed in a short time, and the time for warming the room could be reduced to about half of the conventional time. . As a result, the speed at which the feet warm up has been doubled (half the time). This is the time required to start heating at room temperature of 2 ° C until half of the room is heated to about 18 ° C or higher. Even when cooling was reduced to 20 minutes compared to 36 minutes in the conventional technology. , It blows out a lot of comfortable cool breeze to make the whole room quick and comfortable, and there is little uneven distribution of cold air such that only part of the room is too cold, and there is little difference in temperature between the ceiling and floor, creating a comfortable environment.

At the start of operation during cooling, in order to prevent an unpleasant odor from being blown out at the beginning of blowing, the shielding plate should be closed until the heat exchanger is sufficiently cooled, and it should be sufficiently cooled to prevent an unpleasant odor. I decided to open it after it did not occur.

As compared with the conventional suction port having a lattice, the ventilation resistance was greatly reduced, and the quietness was improved. In addition, since the blades are tapered with different widths in the lengthwise direction, it is possible to deviate the timing of cutting off the air from the blades, reduce noise, and obtain an operating sound that is the same as before even if the air volume is increased. If a DC power supply is installed outside this,
When driving in a rest mode, the driving noise is 23, which is similar to a quiet park at night.
I was able to reduce the noise level by dB, and it was quiet so that it would not disturb the conversation or reading even during normal driving.

Since there is no grid, dust and dirt can be easily wiped off or can be easily removed and washed.

The surface area of the heat exchanger was increased and the heat exchange rate was increased. By using the Λ-shaped heat exchanger of the embodiment, the heat transfer area can be increased by about 1.4 times as compared with the conventional one without changing the size of the indoor unit.
0% up. For example, when flowing the same amount of refrigerant as before,
The cooling power and warming power have increased by about 40%, and the energy consumption efficiency (COP) has been greatly improved. In terms of power consumption, this can be reduced by about 5.5% during normal operation.

The air volume is increased by about 30%, and the Λ-shaped heat exchanger of the embodiment can be efficiently dehumidified, and the electricity cost can be reduced by about 30% as compared with the conventional one.

The air outlet provided long in the lateral direction and short in the depth direction of the indoor unit can increase the size of the short side by about 13%, and can blow out the air volume increased by about 30% above in a wide range. We were able to shorten the time it took for the room to be comfortable when it was warm and dehumidified, and to expand the comfortable zone. As a result, the power consumption could be reduced by about 1%.

After operating the open / close button of the remote controller, the front panel is opened. In this state, open the front grill and pull the filter and filter cover toward you to remove them. The front grill can be easily removed by pushing the right arm inward, removing the pin, and pulling the front grill toward you.

When the suction portion is not used, the suction port is shielded so that dust and insects do not enter the inside, so that the inside is less likely to get dirty.

Further, since the suction port is not provided with a lattice with a small interval, the suction area per unit area can be increased, so that the suction air resistance is reduced, or when the suction area is the same as that having a lattice, There is no problem of air flow reduction due to the boundary layer of air near the surface of the grid. From these facts, the flow rate of air is larger than that of the one having the grid, so that the heat exchange performance is improved and the noise due to the wind noise at the grid can be prevented.

Since the suction opening is not provided with a grid having a small interval, dirt can be easily wiped off, and the cleanability is improved.

Since the filter cover can be handled separately from the housing, it is easy to clean. At the start of heating operation, the shielding plate was closed until the preheating of the temperature of the refrigerant was completed, so the time for the temperature of the heat exchanger of the indoor unit to rise can be shortened, and this allows hot air to blow out. Comfortable heating can be realized in a short time from the start.

At the start of the cooling operation or the dehumidifying operation, the opening operation of the shielding plate and the operation of the indoor fan were delayed compared to the start of the operation of the compressor. Therefore, by blowing the air after the heat exchanger was cooled, The characteristic odor before the heat exchanger is cooled can be prevented from being released into the room, and comfortable air conditioning can be performed.

[0189]

According to the present invention, when the suction part is not used, the suction port is shielded so that dust and insects do not enter the inside, so that the inside is less likely to become dirty.

Further, since the suction port is not provided with a lattice having a small interval, the suction area per unit area can be increased, so that the suction air resistance is reduced, or when the suction area is the same as that having the lattice, There is no problem of air flow reduction due to the boundary layer of air near the surface of the grid. From these facts, the flow rate of air is larger than that of the one having the grid, so that the heat exchange performance is improved and the noise due to the wind noise at the grid can be prevented.

Since the suction opening is not provided with a grid with a small interval, dirt can be easily wiped off and the cleaning performance is improved.

Since the filter cover can be handled separately from the housing, it is easy to clean.

At the start of the heating operation, the shielding plate was kept closed until the preheating until the temperature of the refrigerant was raised, so that the time for the temperature of the heat exchanger of the indoor unit to rise can be shortened, and thus the warm air A short time after the start of operation, the balloon can be comfortably heated.

At the start of the cooling operation or the dehumidifying operation, the opening operation of the shielding plate and the operation of the indoor fan were delayed compared to the start of the operation of the compressor. Therefore, by blowing the air after the heat exchanger was cooled, The characteristic odor before the heat exchanger is cooled can be prevented from being released into the room, and comfortable air conditioning can be performed.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an embodiment of an air conditioner according to the present invention.

FIG. 2 is a component configuration diagram showing an embodiment of an air conditioner according to the present invention.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a front view of FIG. 1;

FIG. 5 is a plan view of FIG. 1;

FIG. 6 is a plan view showing another embodiment of FIG.

FIG. 7 is a bottom view of FIG. 1;

FIG. 8 is a perspective view of FIG.

9 is a cross-sectional view taken along the line B-B ′ of FIG.

10 is a cross-sectional view taken along the line C-C ′ of FIG.

11 is a cross-sectional view taken along the line A-A ′ of FIG.

FIG. 12 is a cross-sectional view showing an embodiment of the air conditioner according to the present invention.

FIG. 13 is a shutter mechanism diagram showing an embodiment of an air conditioner according to the present invention.

FIG. 14 is a filter configuration diagram showing an embodiment of an air conditioner according to the present invention.

FIG. 15 is an external view of a main part of a filter cover showing an embodiment of an air conditioner according to the present invention.

16 is a partially enlarged view of FIG. 15 (b).

FIG. 17 is a comparative view of a conventional suction grill and a filter cover of the present invention.

FIG. 18 is a cross-sectional view of a cross-flow fan suitable for use in the air conditioner of the present invention.

FIG. 19 is an enlarged partial sectional view showing an embodiment in which the shape of the blade is different from that in FIG.

FIG. 20 is a comparison diagram of the dehumidifying ability between the embodiment of the present invention and the conventional technique.

FIG. 21 is an apparatus configuration diagram showing an embodiment of an air conditioner according to the present invention.

FIG. 22 is a control flow chart showing an embodiment of the air conditioner according to the present invention.

FIG. 23 is a cross-sectional view of essential parts showing an opening / closing operation state of a shielding plate of the air conditioner according to the present invention.

FIG. 24 is a cross-sectional view of essential parts showing an application example of an embodiment of the air conditioner according to the present invention.

FIG. 25 is a cross-sectional view showing the operation of the air conditioner according to the present invention with the shield plate closed.

FIG. 26 is a cross-sectional view showing the operation of the air conditioner according to the present invention with the shield plate open.

FIG. 27 is a control flow chart showing an application example of control of the air conditioner according to the present invention.

FIG. 28 is an external view of a remote controller used in the air conditioner according to the present invention.

29 is an external view of the remote controller of FIG. 28 with the door open.

FIG. 30 is a control conceptual diagram of an embodiment of an air conditioner according to the present invention.

FIG. 31 is a control operation diagram of the embodiment of the air conditioner according to the present invention.

FIG. 32 is a control operation diagram when the power is turned on in the embodiment of the air conditioner according to the present invention.

FIG. 33 is a control operation diagram when the heating operation is started in the embodiment of the air conditioner according to the present invention.

FIG. 34 is a control operation diagram at the start of the cooling / dehumidifying operation of the embodiment of the air conditioner according to the present invention.

FIG. 35 is a demonstration control operation diagram of the embodiment of the air conditioner according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Indoor unit, 2 ... Back cabinet, 3 ... Decorative cover, 4 ... Front panel, 5 ... Blowing part, 6a, 6b
... wind direction plate, 7 ... first suction section, 8 ... filter cover, 9
... Shielding plate, 10 ... Heat exchanger, 10a ... Front heat exchanger,
10b ... rear heat exchanger, 11 ... filter, 12 ... second
Suction unit, 13 ... Third suction unit, 14 ... Display unit, 15 ...
Light-receiving part, 16 ... Blower fan, 17 ... Drain tray, 18 ... Fan motor, 24 ... Motor, 25 ... Electrical component box, 30 ... Air cleaning filter, 31 ... Shutter mechanism part, W ... Width of indoor unit 1, H ... Height of indoor unit 1, D ... Depth of indoor unit 1, 33, 34, 35 ... Large curved surface, 36
... Grooves, 37 ... Handle recesses, 38a, 38b, 38c ...
Large radius, 39 ... Inclined surface, 40 ... Recessed groove, 41 ... Opening, 42 ... Rib, 53 ... Blowing air passage, 58 ... Opening, 5
9 ... Drive mechanism part, 60 ... Connection mechanism part, 61 ... Connection rod, 6
2 ... Mounting rib, 63 ... Rack, 64 ... Stepping motor, 65 ... Drive mechanism case, 66 ... Sliding groove, 67 ... Mounting portion, 68 ... Plate gear, 69 ... Terminal, 70 ... First gear, 71
... 2nd gear, 72 ... 3rd gear, 73 ... Belt, 74 ... Rack support part, 75 ... Guide rail, 76 ... Guide rail.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Hideyuki Matsushima, Inventor 800, Tomita, Ohira-machi, Shimotsuga-gun, Tochigi, Ltd.Hitachi, Ltd., Cooling & Heat Business Department (72) Hiromi Wada, 800, Tomita, Ohira-machi, Shimotsuga, Tochigi Incorporated company Hitachi Co., Ltd.Cryogenics division (72) Inventor Yoji Nakagawa 1-280 Higashi Koigakubo, Kokubunji, Tokyo Incorporated company Hitachi Ltd. Design Research Laboratory (72) Inventor Shunji Fujimori 1-280 Higashi Koigakubo, Kokubunji, Tokyo Hitachi, Ltd. Design Research Center (72) Inventor Fumio Iwabuchi 800 Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Stock Company Hitachi Co., Ltd.

Claims (28)

[Claims] 1. A housing having an air inlet and an air outlet, an air filter inside the housing, a heat exchanger, a blower indoor fan, and these air filters, heat exchangers and blower indoor fans. An air conditioner having a ventilation path sequentially arranged in the air circulation direction, the air suction port is provided on the front surface of the housing, and a shielding means that moves to open or shield the suction port. An air conditioner comprising drive means for driving the shielding means and control means for controlling the drive means. 2. The air conditioner according to claim 1, wherein the control means controls the drive means for driving the shielding means in correspondence with the operation and stop of the air conditioner. 3. A housing having an air inlet and an air outlet, an air filter inside the housing, a heat exchanger, a blower indoor fan, and these air filters, heat exchangers and blower indoor fans. An air conditioner having a ventilation path sequentially arranged in the air circulation direction, the air suction port is provided on the front surface of the housing, and a shielding means that moves to open or shield the suction port. A driving means for driving the shielding means, and a control means for controlling the driving means, wherein the control means can drive the driving means for driving the shielding means when the air conditioner is stopped. A characteristic air conditioner. 4. A housing having an air inlet and an air outlet, an air filter inside the housing, a heat exchanger, a blower indoor fan, and these air filters, heat exchangers and blower indoor fans. An air conditioner having a ventilation path sequentially arranged in the air circulation direction, the air suction port is provided on the front surface of the housing, and a shielding means that moves to open or shield the suction port. A drive means for driving the shielding means, a control means for controlling the drive means, and a remote controller for sending a control signal to the control means, wherein the control means controls the remote controller when the air conditioner is stopped. An air conditioner, which receives a control signal transmitted by operating a specific operation button and controls the drive means to drive the shielding means when the air conditioner is stopped. 5. The air conditioner according to claim 4, wherein the button of the remote controller for controlling the drive means also serves as the button for other control. 6. The air conditioner according to claim 5, wherein the button operation of the remote controller is a combination of a plurality of buttons. 7. The control means according to any one of claims 1 to 5, wherein the control means operates the shielding means to close the suction part in the operation stop or the preliminary operation mode, and opens the shielding means in the normal operation mode. Air conditioner. 8. The method according to any one of claims 1 to 5,
An air conditioner characterized in that the driving means opens the lateral louver and closes the shielding means in the air cleaning operation mode. 9. A housing having an air inlet and an air outlet, an air filter inside the housing, a heat exchanger, a blower indoor fan, and these air filters, heat exchangers and blower indoor fans. In an air conditioner having a ventilation path sequentially arranged in the air circulation direction, the housing is composed of a back cabinet forming a housing rear portion and a front cover forming a housing front portion. And a suction port arranged on the front surface of the front cover so as to communicate with the ventilation passage, a shielding means for opening and closing the suction port, and the shielding means movable in a predetermined direction. An air conditioner comprising guide means for guiding and supporting, and drive means for moving the shielding means along the guide means. 10. A housing having an air inlet and an air outlet, an air filter inside the housing, and a heat exchanger.
In an air conditioner having a blower indoor fan, and an air passage in which these air filters, a heat exchanger, and a blower indoor fan are sequentially arranged in the air circulation direction, the above casing forms a rear portion of the casing. A front cabinet forming a front part of the housing, a front cover forming a front part of the housing, and a front cover forming a front part of the front panel so as to communicate with the ventilation passage. With a suction port arranged, the makeup cover,
An air conditioner comprising: a shield means for opening and closing the suction port; a guide means for guiding and supporting the shield means so as to be movable in a predetermined direction; and a drive means for moving the shield means along the guide means. Machine. 11. The air conditioner according to claim 1, wherein the shielding means is smaller than the suction port and opens the suction port. 12. The air conditioner according to any one of claims 1 and 9 to 11, wherein the shielding means has a size equal to that of the split or suction port. 13. The air conditioner according to any one of claims 9 to 12, wherein the predetermined direction is a vertical direction. 14. The housing according to any one of claims 9 to 13, wherein a second suction port is provided on the upper surface of the housing, and an air outlet is provided on the lower front surface of the housing or from the lower front surface to the lower front surface of the housing. An air conditioner characterized in that the outlet has a horizontal louver that rotates in the vertical direction. 15. The front cover according to claim 9, wherein the upper surface of the front cover is provided with a second suction port, and the front cover is provided with an air outlet from a lower front portion or a lower front portion to a lower front portion. An air conditioner comprising a horizontal louver that rotates in a vertical direction. 16. The decorative cover according to claim 9, wherein a second suction port is provided on the upper surface of the decorative cover, an air outlet is provided from the lower front portion of the decorative cover or from the lower front portion to the lower front portion, and the second cover is provided on the upper surface of the rear cover. An air conditioner provided with three inlets, and the outlet has a horizontal louver that rotates in the vertical direction. 17. The heat exchanger according to claim 9, wherein the shape of the upper side surface of the heat exchanger is inclined rearward as the upper end thereof increases, and the trajectory of the shielding means moves upward. An air conditioner characterized by having a large distance from the container. 18. The flat surface adjacent to the suction opening, which is larger than the size of the suction opening, is formed on the front surface of the housing, and the shielding means is provided inside the flat surface according to any one of claims 1 to 13. An air conditioner characterized by having a storage portion formed. 19. The filter according to claim 1, further comprising a ventilation part between the shielding means and the filter and a cover for covering the front surface of the filter, wherein the ventilation part has meshes or holes of the filter. An air conditioner characterized by having a large number of openings that are larger than the size of the above. 20. The air conditioner according to claim 19, wherein the cover is provided with a gap between the cover and the filter. 21. The air conditioner according to claim 19, wherein a cover is detachably attached to the filter. 22. A housing having an air inlet and an air outlet, an air filter inside the housing, and a heat exchanger,
In an air conditioner having a blower indoor fan, and an air passage in which these air filters, heat exchangers, and blower indoor fans are sequentially arranged in the air flow direction, the air suction port is the front face of the housing. In addition, a ventilation section is provided between the suction port and the filter, and a cover for covering the front surface of the filter is arranged, and the ventilation section has an opening larger than the mesh size of the filter or the size of the openings of the filter. An air conditioner characterized in that many are made densely. 23. The air conditioner according to claim 22, wherein the ventilation part is a regular hexagon. 24. The air conditioner according to claim 22, wherein the cover is provided with a gap between the cover and the filter. 25. An air conditioner according to claim 22 or 23, wherein the cover is detachably attached to the filter. 26. A casing having an air intake port and an air outlet port, an air filter inside the casing, a heat exchanger having a substantially Λ-shaped upper side surface, and a lower part of the heat exchanger. In the air conditioner, which comprises a cross-flow fan positioned in, and a housing having an air filter, a heat exchanger, and a ventilation path in which the cross-flow fan is sequentially arranged in the air flow direction, A first cabinet configured to include a back cabinet that configures a rear portion of the housing, a decorative cover that configures a central portion of the housing, and a front panel that configures a front portion of the housing. The front panel communicates with the ventilation passage. A suction port, a second suction port provided on the upper surface of the decorative cover, a third suction port provided on the upper surface of the rear cover, and a blower provided on the lower front surface of the decorative cover or from the lower front surface to the lower front surface. Exit and blow out above Is provided with a horizontal louver that rotates in the vertical direction, except for a position where the second suction port and the third suction port face a portion of the upper end of the substantially Λ-shaped heat exchanger having a small air flow resistance. The cover is provided between the first suction port and the filter and covers the front surface of the filter, and the ventilation part has an opening larger than the size of the mesh or holes of the filter. An air conditioner characterized by having many parts densely arranged. 27. A casing having an air intake port and an air outlet port, an air filter inside the casing, a heat exchanger having an upper side surface of a substantially Λ shape, and a lower portion of the heat exchanger. In the air conditioner, which comprises a cross-flow fan positioned in, and a housing having an air filter, a heat exchanger, and a ventilation path in which the cross-flow fan is sequentially arranged in the air flow direction, A first cabinet configured to include a back cabinet that configures a rear portion of the housing, a decorative cover that configures a central portion of the housing, and a front panel that configures a front portion of the housing. The front panel communicates with the ventilation passage. A suction port, a second suction port provided on the upper surface of the decorative cover, a third suction port provided on the upper surface of the rear cover, and a blower provided on the lower front surface of the decorative cover or from the lower front surface to the lower front surface. Exit and blow out above Is provided with a horizontal louver that rotates in the vertical direction, the second suction port and the third suction port are divided into front and rear in the depth direction of the housing, and the connecting portion of the dividing portion has a substantially Λ-shaped heat. The upper end of the exchanger is provided so as to face a portion having a small air flow resistance, and a ventilation section is provided between the first suction port and the filter, and a cover for covering the front surface of the filter is arranged. The air conditioner is characterized in that a large number of openings, which are larger than the size of the mesh or holes of the filter, are densely provided in the section. 28. The suction port and the horizontal louver according to claim 12, wherein the blower fan drive means, the louver drive means, and the electrical component box are provided with a shield means with respect to the width of the decorative cover. An air conditioner characterized in that the non-opening portions formed on the left and right sides are equalized on the left and right sides due to the difference in the lateral width dimension of the provided outlets.